.my-selecting{
  display: block;
  position: absolute;
  width: 0;
  height: 0;
  touch-action: none;
}

.my-selecting .x6-widget-selection-inner{
  box-sizing: content-box !important;
  margin-top: -8px;
  margin-left: -8px;
  padding-right: 12px;
  padding-bottom: 12px;
  border: 2px solid #feb663;
  box-shadow: 2px 2px 5px #d3d3d3;
  width: 100%;
  height: 100%;
}
